5 Stars4 Stars3 Stars2 Stars1 Star (25 votes, average: 3.56 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (6 votes, average: 3.83 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (6 votes, average: 4.83 out of 5)

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I recently went through testing of a lot of different 12at7. Here is what I found out.

If the tube is used in the circuit it’s designed for, there is very little sonic difference between various tubes in this family. The difference is possibly 1%. I tried NOS Telefunken and ShuGuang with practically the same results. I also tried them in multiple amps with the same results.

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5 Stars4 Stars3 Stars2 Stars1 Star (11 votes, average: 3.36 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (27 votes, average: 3.74 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (5 votes, average: 4.20 out of 5)

“12AT7 Tungsol sound superb, especially the 1950’s black plate; very clear, great upper midrange presence, extended highs, wide soundstage”

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5 Stars4 Stars3 Stars2 Stars1 Star (39 votes, average: 4.28 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (8 votes, average: 3.63 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (11 votes, average: 4.36 out of 5)

“superb lively sounding 12AT7, Bugle Boys have a magical sounding upper midrange”

“Those French made 12AT7 Amperexes are supposed to be some of the best sounding AT7s made” Read

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